Every Marvin Window and Door is made to order, one at a time. An unparalleled value in the market, Marvin offers craftsman-quality construction, energy-efficient technology and the industry’s most extensive selection of shapes, styles, sizes and options.

Integrity's windows and doors are made with Ultrex® Fiberglass, an innovative material created 20 years ago. For two decades now, Ultrex has outlasted and outperformed the competition on virtually every measurable scale.

Infinity Ultrex fiberglass replacement windows and patio doors are designed to replicate the look of traditional wood windows while providing modern features and low-maintenance, yet long-lasting performance.

When you partner with Marvin on your next project—whether that be a remodel, replacement, new construction, or even the creation of sustainable building—you can be sure you will be getting the guidance and expertise necessary to make any design complete. We invite you to visit our inspiration gallery, research our brands, learn more about architectural styles and explore our wide array of brochures and catalogs.

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We gathered some helpful resources to help answer your immediate questions and provide solutions. From manuals to maintenance, and installation instructions to energy data, there’s a wealth of information right here.

Need Some Extra Help?

We gathered some helpful resources to help answer your immediate questions and provide solutions. From manuals to maintenance, and installation instructions to energy data, there’s a wealth of information right here.

Piedmont Residence Polygon, Casement, Awning and Windows

Located in the foothills of the Blue Ridge Mountains, this residence overlooks a lake with expansive mountain views beyond. Its design ties the home to its surroundings, and enhances the ability to experience both home and nature together. The architect delivered a design that captured the essence of its place, while not overstating its presence within the whole. Inspiration for this design was found in the lay of the land, its natural beauty and assets, as well as the simplicity of the surrounding vernacular agrarian buildings. The aim was to achieve the clients’ desire to be deeply connected to the land with a clean, modern and simple work of architecture. The windows were an integral component in the home design, providing the large expanses of high-performing windowed walls, essential to connecting with the surrounding landscape. These standard windows were customized to achieve, within budget, a continuous expanse of glass not possible within the boundaries of a typical residential window system.